![]() – it just means the leaf veins branch beyond the primary split – all good!Ĭall Plant Specialists today and have us put some leaves in your garden. ![]() So don’t worry if your gardener tells you your tree has Palinactodromous leaves My classification of this Begonia rex leaf is “pretty” what about you ! ![]() Even how hairy, or if it’s a young or old leaf ! The leaves of different plants vary widely in size, shape, and color. Leaves produce food for the plant through a process called photosynthesis. Also for leaf margins, leaf venation, how pronounced is the venation, the shape of leaf tips, the shape of the base of the leaf, or the surface of leaf. The leaf is one of the most important parts of a plant. Specific names exist for particular shapes of petioles. Take a look at all the leaf shape classification in the table below !Īnd yes – I did study all of these names when taking my Taxonomy classes ! Compound leaves are further broken into “palmately compound”, “pinnately compound, “odd pinnate”, “even pinnate”, “bi pinnately compound”, “trifoliate”, or “pinnatifid”. The blade (lamina) can be “simple” (Hibiscus) or “compound” (Rose). In contrast, monocots will have parallel leaf venation. In eudicot plants, leaf venation is typically either pinnate or palmate and may have multiple branching that gives an overall netted appearance. The leaves take up water and carbon dioxide and convert them into carbohydrates in the presence of sunlight and chlorophyll. It is normally green in colour and manufactures food for the whole plant. Less common are “basal”, “cauline”, “verticillate”, “rosulate”, or “in rows”. Leaf venation refers to the patterns of veins within the leaf blade. Definition of a Leaf: The leaf is a flattened, lateral outgrowth of the stem in the branch, developing from a node and having a bud in its axil. The most common arrangement of the leaf on the stem is either “alternate” (Sweetgum), or “opposite” (Maple). Those that have no attachment, or if attached directly – “sessile” (Iris).Ī few common (but not all !) names of leaf margins Leaves attached to stems by stalks (petioles) are called “petiolate” (Birch). Plants with small leaves – “microphylls” (Boxwood). Broad flat leaves are known as “megaphylls” (Hosta). The top side is “adaxial”, lower is “abaxial”. Leaves and stems together are called “shoots”. Lvs flat entire (or fine teeth only) Lvs toothed/lobed (not to midrib) Lf palmate/pinnate (divided to midrib) See also some special cases: Lvs thick, succulent. Knowing the general shape can immediately narrow down the type of tree you’re dealing with. Leaves come in various shapes like oval, lanceolate (lance-shaped), cordate (heart-shaped), or more complex forms like lobed and compound leaves. Taxonomists use all these different characteristics to classify plants – and every characteristic has a specific name.īeware – this name giving thing is daunting! Choose herbaceous leaf types from the following 4 options, or from special cases below (View ALL before choosing) Lvs absent or cylindrical. Begin your leaf identification journey by taking a close look at the overall shape of the leaf. Leaves have also adapted to the available sunlight, presence of grazing animals, available nutrients, and competition from other plants. These vary considerably depending largely on their adaptation to climate. Over time, it has evolved into a plethora of different shapes, sizes and characteristics. A leaf is the main organ attached to the stem.
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